#include "llvm/Constants.h"
#include "llvm/DerivedTypes.h"
#include "llvm/GlobalVariable.h"
-#include "llvm/Intrinsics.h"
-#include "llvm/Instructions.h"
#include "llvm/Module.h"
#include "llvm/Analysis/ValueTracking.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/Passes.h"
-#include "llvm/Target/TargetInstrInfo.h"
-#include "llvm/Target/TargetMachine.h"
-#include "llvm/Target/TargetOptions.h"
+#include "llvm/MC/MCObjectFileInfo.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/ADT/PointerUnion.h"
#include "llvm/Support/Dwarf.h"
using namespace llvm::dwarf;
// Handle the Pass registration stuff necessary to use TargetData's.
-static RegisterPass<MachineModuleInfo>
-X("machinemoduleinfo", "Machine Module Information");
+INITIALIZE_PASS(MachineModuleInfo, "machinemoduleinfo",
+ "Machine Module Information", false, false)
char MachineModuleInfo::ID = 0;
// Out of line virtual method.
public:
MMIAddrLabelMapCallbackPtr() : Map(0) {}
MMIAddrLabelMapCallbackPtr(Value *V) : CallbackVH(V), Map(0) {}
-
+
void setPtr(BasicBlock *BB) {
ValueHandleBase::operator=(BB);
}
-
+
void setMap(MMIAddrLabelMap *map) { Map = map; }
-
+
virtual void deleted();
virtual void allUsesReplacedWith(Value *V2);
};
-
+
class MMIAddrLabelMap {
MCContext &Context;
struct AddrLabelSymEntry {
/// Symbols - The symbols for the label. This is a pointer union that is
/// either one symbol (the common case) or a list of symbols.
PointerUnion<MCSymbol *, std::vector<MCSymbol*>*> Symbols;
-
+
Function *Fn; // The containing function of the BasicBlock.
unsigned Index; // The index in BBCallbacks for the BasicBlock.
};
-
+
DenseMap<AssertingVH<BasicBlock>, AddrLabelSymEntry> AddrLabelSymbols;
-
+
/// BBCallbacks - Callbacks for the BasicBlock's that we have entries for. We
/// use this so we get notified if a block is deleted or RAUWd.
std::vector<MMIAddrLabelMapCallbackPtr> BBCallbacks;
DenseMap<AssertingVH<Function>, std::vector<MCSymbol*> >
DeletedAddrLabelsNeedingEmission;
public:
-
+
MMIAddrLabelMap(MCContext &context) : Context(context) {}
~MMIAddrLabelMap() {
assert(DeletedAddrLabelsNeedingEmission.empty() &&
"Some labels for deleted blocks never got emitted");
-
+
// Deallocate any of the 'list of symbols' case.
for (DenseMap<AssertingVH<BasicBlock>, AddrLabelSymEntry>::iterator
I = AddrLabelSymbols.begin(), E = AddrLabelSymbols.end(); I != E; ++I)
if (I->second.Symbols.is<std::vector<MCSymbol*>*>())
delete I->second.Symbols.get<std::vector<MCSymbol*>*>();
}
-
+
MCSymbol *getAddrLabelSymbol(BasicBlock *BB);
std::vector<MCSymbol*> getAddrLabelSymbolToEmit(BasicBlock *BB);
- void takeDeletedSymbolsForFunction(Function *F,
+ void takeDeletedSymbolsForFunction(Function *F,
std::vector<MCSymbol*> &Result);
void UpdateForDeletedBlock(BasicBlock *BB);
assert(BB->hasAddressTaken() &&
"Shouldn't get label for block without address taken");
AddrLabelSymEntry &Entry = AddrLabelSymbols[BB];
-
+
// If we already had an entry for this block, just return it.
if (!Entry.Symbols.isNull()) {
assert(BB->getParent() == Entry.Fn && "Parent changed");
return Entry.Symbols.get<MCSymbol*>();
return (*Entry.Symbols.get<std::vector<MCSymbol*>*>())[0];
}
-
+
// Otherwise, this is a new entry, create a new symbol for it and add an
// entry to BBCallbacks so we can be notified if the BB is deleted or RAUWd.
BBCallbacks.push_back(BB);
assert(BB->hasAddressTaken() &&
"Shouldn't get label for block without address taken");
AddrLabelSymEntry &Entry = AddrLabelSymbols[BB];
-
+
std::vector<MCSymbol*> Result;
-
+
// If we already had an entry for this block, just return it.
if (Entry.Symbols.isNull())
Result.push_back(getAddrLabelSymbol(BB));
// If there are no entries for the function, just return.
if (I == DeletedAddrLabelsNeedingEmission.end()) return;
-
+
// Otherwise, take the list.
std::swap(Result, I->second);
DeletedAddrLabelsNeedingEmission.erase(I);
if (MCSymbol *Sym = Entry.Symbols.dyn_cast<MCSymbol*>()) {
if (Sym->isDefined())
return;
-
+
// If the block is not yet defined, we need to emit it at the end of the
// function. Add the symbol to the DeletedAddrLabelsNeedingEmission list
// for the containing Function. Since the block is being deleted, its
for (unsigned i = 0, e = Syms->size(); i != e; ++i) {
MCSymbol *Sym = (*Syms)[i];
if (Sym->isDefined()) continue; // Ignore already emitted labels.
-
+
// If the block is not yet defined, we need to emit it at the end of the
// function. Add the symbol to the DeletedAddrLabelsNeedingEmission list
// for the containing Function. Since the block is being deleted, its
// 'Entry'.
DeletedAddrLabelsNeedingEmission[Entry.Fn].push_back(Sym);
}
-
+
// The entry is deleted, free the memory associated with the symbol list.
delete Syms;
}
SymList->push_back(PrevSym);
NewEntry.Symbols = SymList;
}
-
+
std::vector<MCSymbol*> *SymList =
NewEntry.Symbols.get<std::vector<MCSymbol*>*>();
SymList->push_back(Sym);
return;
}
-
+
// Otherwise, concatenate the list.
std::vector<MCSymbol*> *Syms =OldEntry.Symbols.get<std::vector<MCSymbol*>*>();
SymList->insert(SymList->end(), Syms->begin(), Syms->end());
//===----------------------------------------------------------------------===//
-MachineModuleInfo::MachineModuleInfo(const MCAsmInfo &MAI)
-: ImmutablePass(&ID), Context(MAI),
- ObjFileMMI(0),
- CurCallSite(0), CallsEHReturn(0), CallsUnwindInit(0), DbgInfoAvailable(false){
+MachineModuleInfo::MachineModuleInfo(const MCAsmInfo &MAI,
+ const MCRegisterInfo &MRI,
+ const MCObjectFileInfo *MOFI)
+ : ImmutablePass(ID), Context(MAI, MRI, MOFI),
+ ObjFileMMI(0), CompactUnwindEncoding(0), CurCallSite(0), CallsEHReturn(0),
+ CallsUnwindInit(0), DbgInfoAvailable(false),
+ CallsExternalVAFunctionWithFloatingPointArguments(false) {
+ initializeMachineModuleInfoPass(*PassRegistry::getPassRegistry());
// Always emit some info, by default "no personality" info.
Personalities.push_back(NULL);
AddrLabelSymbols = 0;
}
MachineModuleInfo::MachineModuleInfo()
-: ImmutablePass(&ID), Context(*(MCAsmInfo*)0) {
+ : ImmutablePass(ID),
+ Context(*(MCAsmInfo*)0, *(MCRegisterInfo*)0, (MCObjectFileInfo*)0) {
assert(0 && "This MachineModuleInfo constructor should never be called, MMI "
"should always be explicitly constructed by LLVMTargetMachine");
abort();
MachineModuleInfo::~MachineModuleInfo() {
delete ObjFileMMI;
-
+
// FIXME: Why isn't doFinalization being called??
//assert(AddrLabelSymbols == 0 && "doFinalization not called");
delete AddrLabelSymbols;
FilterEnds.clear();
CallsEHReturn = 0;
CallsUnwindInit = 0;
+ CompactUnwindEncoding = 0;
VariableDbgInfo.clear();
}
/// addCatchTypeInfo - Provide the catch typeinfo for a landing pad.
///
-void MachineModuleInfo::addCatchTypeInfo(MachineBasicBlock *LandingPad,
- std::vector<const GlobalVariable *> &TyInfo) {
+void MachineModuleInfo::
+addCatchTypeInfo(MachineBasicBlock *LandingPad,
+ ArrayRef<const GlobalVariable *> TyInfo) {
LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad);
for (unsigned N = TyInfo.size(); N; --N)
LP.TypeIds.push_back(getTypeIDFor(TyInfo[N - 1]));
/// addFilterTypeInfo - Provide the filter typeinfo for a landing pad.
///
-void MachineModuleInfo::addFilterTypeInfo(MachineBasicBlock *LandingPad,
- std::vector<const GlobalVariable *> &TyInfo) {
+void MachineModuleInfo::
+addFilterTypeInfo(MachineBasicBlock *LandingPad,
+ ArrayRef<const GlobalVariable *> TyInfo) {
LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad);
std::vector<unsigned> IdsInFilter(TyInfo.size());
for (unsigned I = 0, E = TyInfo.size(); I != E; ++I)
/// TidyLandingPads - Remap landing pad labels and remove any deleted landing
/// pads.
-void MachineModuleInfo::TidyLandingPads() {
+void MachineModuleInfo::TidyLandingPads(DenseMap<MCSymbol*, uintptr_t> *LPMap) {
for (unsigned i = 0; i != LandingPads.size(); ) {
LandingPadInfo &LandingPad = LandingPads[i];
- if (LandingPad.LandingPadLabel && !LandingPad.LandingPadLabel->isDefined())
+ if (LandingPad.LandingPadLabel &&
+ !LandingPad.LandingPadLabel->isDefined() &&
+ (!LPMap || (*LPMap)[LandingPad.LandingPadLabel] == 0))
LandingPad.LandingPadLabel = 0;
// Special case: we *should* emit LPs with null LP MBB. This indicates
for (unsigned j = 0, e = LandingPads[i].BeginLabels.size(); j != e; ++j) {
MCSymbol *BeginLabel = LandingPad.BeginLabels[j];
MCSymbol *EndLabel = LandingPad.EndLabels[j];
- if (BeginLabel->isDefined() && EndLabel->isDefined()) continue;
-
+ if ((BeginLabel->isDefined() ||
+ (LPMap && (*LPMap)[BeginLabel] != 0)) &&
+ (EndLabel->isDefined() ||
+ (LPMap && (*LPMap)[EndLabel] != 0))) continue;
+
LandingPad.BeginLabels.erase(LandingPad.BeginLabels.begin() + j);
LandingPad.EndLabels.erase(LandingPad.EndLabels.begin() + j);
--j, --e;
}
}
+/// setCallSiteLandingPad - Map the landing pad's EH symbol to the call site
+/// indexes.
+void MachineModuleInfo::setCallSiteLandingPad(MCSymbol *Sym,
+ ArrayRef<unsigned> Sites) {
+ for (unsigned I = 0, E = Sites.size(); I != E; ++I)
+ LPadToCallSiteMap[Sym].push_back(Sites[I]);
+}
+
/// getTypeIDFor - Return the type id for the specified typeinfo. This is
/// function wide.
unsigned MachineModuleInfo::getTypeIDFor(const GlobalVariable *TI) {
// in the zero index.
return 0;
}
-